论文部分内容阅读
通过对褐菖鲉发声系统的研究,尤其是发声肌形态、小清蛋白含量和肌纤维超微结构等特征,发现褐菖鲉发声肌和白色肌肉中小清蛋白分子量均为10~14 ku。在白色肌肉肌纤维显微结构中,三联体(一个T小管+两个肌质网终池)仅处于Z膜,而在发声肌纤维中,三联体不仅在Z膜处,也在A带与I带交联处。与白色肌相比,发声肌超微结构中的肌质网更宽,肌膜更发达。在发声肌细胞中,线粒体多且聚集;而白肌细胞中,线粒体相对少且分散。结果显示:在褐菖鲉发声肌的快速收缩中,小清蛋白可能没有起重要作用,而是发达的肌膜、三联体和肌质网结构确保了该特殊肌肉快速收缩和放松的发声功能与行为,同时,大量聚集的线粒体保证其发声肌的持续工作能力。
Through the research on the vocal system, especially the morphology of acoustic muscle, the content of small albumin and the ultrastructure of myofibers, the molecular weight of small albumin in both muscular and white muscle of the white-tailed lanceolate is 10 ~ 14 ku. In the white muscular myofibrillar microstructure, the triplet (a T tubule + two sarcoplasmic reticles) is only in the Z-membrane, whereas in the sonicated muscle fibers the triplet is not only in the Z-membrane, but also in the A and I bands Crosslinking. Compared with the white muscle, the ultrastructure of the phonogenic muscle sarcoplasmic reticulum wider, muscular more developed. In vocalis muscle cells, mitochondria are abundant and aggregated, while in muscle cells, mitochondria are relatively few and scattered. The results showed that during the rapid contraction of the acanthopanax senticosus muscle, small albumin may not play an important role, but the developed muscular membrane, triplet and sarcoplasmic reticulum structure ensure the rapid contraction and relaxation of this particular muscle sound function and Behavior, at the same time, a large number of gathered mitochondria to ensure the sustained working ability of the vocal muscles.